Warning: Permanently added '10.128.0.103' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 42.556321] audit: type=1400 audit(1590473886.289:8): avc: denied { execmem } for pid=6427 comm="syz-executor029" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 42.559159] kasan: CONFIG_KASAN_INLINE enabled [ 42.582728] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 42.590631] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 42.597579] CPU: 0 PID: 6427 Comm: syz-executor029 Not tainted 4.19.124-syzkaller #0 [ 42.605964] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.615409] RIP: 0010:get_unique_tuple+0x27a/0x1d50 [ 42.620714] Code: c1 e9 03 80 3c 11 00 0f 85 d1 17 00 00 4a 8b 14 e5 20 18 8e 89 4c 8d 24 c2 48 b8 00 00 00 00 00 fc ff df 4c 89 e2 48 c1 ea 03 <80> 3c 02 00 0f 85 9d 17 00 00 49 8b 04 24 48 89 85 08 ff ff ff e8 [ 42.640565] RSP: 0018:ffff88808fcfee10 EFLAGS: 00010246 [ 42.645938] RAX: dffffc0000000000 RBX: ffff88808fcfefb8 RCX: 1ffffffff131c359 [ 42.653311] RDX: 0000000000000000 RSI: ffffffff85d1fe87 RDI: ffffffff898e1ac8 [ 42.662151] RBP: ffff88808fcfef68 R08: ffff8880a559e2c0 R09: ffffed1015cc473b [ 42.670602] R10: ffffed1015cc473a R11: ffff8880ae6239d3 R12: 0000000000000000 [ 42.678116] R13: 0000000000000001 R14: ffff88808fcff008 R15: ffff8880a1256dc0 [ 42.685701] FS: 00000000007e2880(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 [ 42.694826] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 42.700954] CR2: 0000000020000280 CR3: 00000000a9152000 CR4: 00000000001406f0 [ 42.708540] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 42.716060] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 42.723448] Call Trace: [ 42.726036] ? nf_ct_invert_tuplepr+0x118/0x1f0 [ 42.730865] ? nf_nat_proto_clean+0x1f0/0x1f0 [ 42.735520] ? lock_downgrade+0x740/0x740 [ 42.739654] ? lock_acquire+0x170/0x3c0 [ 42.743620] ? check_preemption_disabled+0x41/0x280 [ 42.748706] nf_nat_setup_info+0x1c3/0x850 [ 42.752938] ? get_unique_tuple+0x1d50/0x1d50 [ 42.757457] ? _raw_spin_unlock_irqrestore+0x79/0xe0 [ 42.763018] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 42.767702] ? _raw_spin_unlock_irqrestore+0x66/0xe0 [ 42.772837] ? depot_save_stack+0x1d6/0x444 [ 42.777182] ? kasan_kmalloc.part.0+0xa6/0xd0 [ 42.781751] ? kmem_cache_alloc+0x124/0x370 [ 42.786087] ? __nf_conntrack_alloc.isra.0+0xd4/0x5e0 [ 42.794933] __nf_nat_alloc_null_binding+0x164/0x1d0 [ 42.800199] ? nf_nat_setup_info+0x850/0x850 [ 42.804958] ? check_preemption_disabled+0x41/0x280 [ 42.810935] nfnetlink_parse_nat_setup+0x39a/0x420 [ 42.815875] ? nf_nat_inet_fn+0x8a0/0x8a0 [ 42.820014] ? check_preemption_disabled+0x41/0x280 [ 42.825470] ? __nf_conntrack_alloc.isra.0+0xd4/0x5e0 [ 42.830660] ? check_preemption_disabled+0x41/0x280 [ 42.835755] ctnetlink_parse_nat_setup+0xb6/0x640 [ 42.840930] ctnetlink_create_conntrack+0x4b7/0x12b0 [ 42.846648] ? ctnetlink_glue_parse+0x520/0x520 [ 42.851480] ? __sanitizer_cov_trace_switch+0x45/0x70 [ 42.856662] ? hash_conntrack_raw.isra.0+0x2d9/0x470 [ 42.861969] ? nf_conntrack_double_lock.isra.0+0xf0/0xf0 [ 42.867584] ? nf_ct_gc_expired+0x310/0x310 [ 42.872075] ctnetlink_new_conntrack+0x4f5/0xdd1 [ 42.877200] ? ctnetlink_create_conntrack+0x12b0/0x12b0 [ 42.882584] ? __mutex_add_waiter+0x160/0x160 [ 42.887125] ? check_preemption_disabled+0x41/0x280 [ 42.892135] ? ctnetlink_create_conntrack+0x12b0/0x12b0 [ 42.897682] nfnetlink_rcv_msg+0xc6b/0xf50 [ 42.902307] ? nfnetlink_net_exit_batch+0x150/0x150 [ 42.907501] ? __lock_acquire+0x6b9/0x4380 [ 42.912026] ? kasan_kmalloc.part.0+0xa6/0xd0 [ 42.916519] ? cred_has_capability+0x162/0x2e0 [ 42.921090] ? cred_has_capability+0x1d9/0x2e0 [ 42.925718] ? selinux_inode_copy_up+0x180/0x180 [ 42.930696] ? selinux_inode_copy_up+0x180/0x180 [ 42.936550] netlink_rcv_skb+0x160/0x410 [ 42.940606] ? nfnetlink_net_exit_batch+0x150/0x150 [ 42.945798] ? netlink_ack+0xa50/0xa50 [ 42.949874] ? ns_capable_common+0xe2/0x100 [ 42.954189] nfnetlink_rcv+0x1b2/0x420 [ 42.958148] ? nfnetlink_rcv_batch+0x15e0/0x15e0 [ 42.963201] netlink_unicast+0x4d7/0x6a0 [ 42.967285] ? netlink_sendskb+0x70/0x70 [ 42.971476] netlink_sendmsg+0x6e3/0xcc0 [ 42.975718] ? nlmsg_notify+0x190/0x190 [ 42.980019] ? move_addr_to_kernel.part.0+0x110/0x110 [ 42.985306] ? nlmsg_notify+0x190/0x190 [ 42.989574] sock_sendmsg+0xc3/0x120 [ 42.993755] ___sys_sendmsg+0x803/0x920 [ 42.997816] ? copy_msghdr_from_user+0x410/0x410 [ 43.002567] ? selinux_file_alloc_security+0xaf/0x190 [ 43.007806] ? percpu_counter_add_batch+0x123/0x180 [ 43.012817] ? alloc_empty_file+0xd7/0x170 [ 43.017080] ? errseq_sample+0x56/0x70 [ 43.021051] ? alloc_file+0x325/0x4d0 [ 43.025093] ? __fd_install+0x1b4/0x610 [ 43.029071] ? __fget_light+0x1a2/0x230 [ 43.033152] __sys_sendmsg+0xec/0x1b0 [ 43.036970] ? __ia32_sys_shutdown+0x70/0x70 [ 43.041918] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 43.047428] ? trace_hardirqs_off_caller+0x69/0x210 [ 43.054993] ? do_syscall_64+0x21/0x620 [ 43.059810] do_syscall_64+0xf9/0x620 [ 43.064483] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 43.070931] RIP: 0033:0x440299 [ 43.074881] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 fb 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 43.096768] RSP: 002b:00007fffc8cfc458 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 43.104997] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440299 [ 43.112854] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000003 [ 43.121430] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8 [ 43.129147] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401b20 [ 43.137107] R13: 0000000000401bb0 R14: 0000000000000000 R15: 0000000000000000 [ 43.144739] Modules linked in: [ 43.148564] ---[ end trace e06113b727aed1eb ]--- [ 43.153375] RIP: 0010:get_unique_tuple+0x27a/0x1d50 [ 43.158636] Code: c1 e9 03 80 3c 11 00 0f 85 d1 17 00 00 4a 8b 14 e5 20 18 8e 89 4c 8d 24 c2 48 b8 00 00 00 00 00 fc ff df 4c 89 e2 48 c1 ea 03 <80> 3c 02 00 0f 85 9d 17 00 00 49 8b 04 24 48 89 85 08 ff ff ff e8 [ 43.178420] RSP: 0018:ffff88808fcfee10 EFLAGS: 00010246 [ 43.184107] RAX: dffffc0000000000 RBX: ffff88808fcfefb8 RCX: 1ffffffff131c359 [ 43.191563] RDX: 0000000000000000 RSI: ffffffff85d1fe87 RDI: ffffffff898e1ac8 [ 43.200304] RBP: ffff88808fcfef68 R08: ffff8880a559e2c0 R09: ffffed1015cc473b [ 43.208257] R10: ffffed1015cc473a R11: ffff8880ae6239d3 R12: 0000000000000000 [ 43.216486] R13: 0000000000000001 R14: ffff88808fcff008 R15: ffff8880a1256dc0 [ 43.224874] FS: 00000000007e2880(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 [ 43.233381] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 43.240426] CR2: 0000000020000280 CR3: 00000000a9152000 CR4: 00000000001406f0 [ 43.248127] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 43.256744] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 43.266602] Kernel panic - not syncing: Fatal exception [ 43.274320] Kernel Offset: disabled [ 43.279503] Rebooting in 86400 seconds..